java.lang.Exception: The database server's error messages are not in English, however the installer requires them to be in English when using PostgreSQL earlier than 7.4. You either need to set "lc_messages = 'C'" in your postgresql.conf file and restart PostgreSQL or upgrade to PostgreSQL 7.4 or later. The installer executed the query "SELECT bogus_column_1249697930711 FROM bogus_table_1249697930711 WHERE another_bogus_column_1249697930711 IS NULL" and expected "does not exist" in the error message, but this exception was received instead: java.sql.SQLException: Could not get an administrative connection to the database. Is the database running, listening for TCP connections, and allowing us to connect and authenticate from localhost? Tried connecting to database specified by data source SimpleDataSource[URL='jdbc:postgresql://localhost:5432/template1', driver class='org.postgresql.Driver', properties: user='postgres', password='']. Original error: org.postgresql.util.PSQLException: Connection refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.